| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] an [adj] period [prep] | 39 |
|
| 2 | [noun sg] [prep] an [adj] period [prep] | 27 |
|
| 3 | [verb] [prep] an [adj] period [prep] | 26 |
|
| 4 | [vb pp] [prep] an [adj] period [prep] | 16 |
|
| 5 | [noun pl] [prep] an [adj] period [prep] | 8 |
|
| 6 | [adv] [prep] an [adj] period [prep] | 6 |
|
| 7 | [conj] [prep] an [adj] period [prep] | 6 |
|
| 8 | [adj] [prep] an [adj] period [prep] | 5 |
|
| 9 | [prep] an [adv] [adj] period [prep] | 9 |
|
| 10 | [prep] an [adv] [adj] period [prep] | 9 |
|
| 11 | [prep] an [adj] [noun sg] period [prep] | 8 |
|
| 12 | [prep] an [adj] [noun] period [prep] | 8 |
|
| 13 | [prep] an [adj] period [prep] [adj] | 40 |
|
| 14 | [prep] an [adj] period [prep] [noun] | 35 |
|
| 15 | [prep] an [adj] period [prep] [noun sg] | 33 |
|
| 16 | [prep] an [adj] period [prep] [num] | 27 |
|
| 17 | [prep] an [adj] period [prep] [art] | 14 |
|
| 18 | [prep] an [adj] period [prep] time | 14 |
|
| 19 | [prep] an [adj] period [prep] time | 14 |
|
| 20 | [prep] an [adj] period [prep] [art] | 14 |
|
| 21 | [prep] an [adj] period [prep] [adj] | 9 |
|
| 22 | [prep] an [adj] period [prep] the | 7 |
|
| 23 | [prep] an [adj] period [prep] a | 7 |
|
| 24 | [prep] an [adj] period [prep] the | 7 |
|
| 25 | [prep] an [adj] period [prep] a | 6 |
|
| 26 | [prep] an [adj] period [prep] two | 5 |
|
| 27 | [prep] an [adj] period [prep] two | 5 |
|
